Mid-season continues to ramp up as this week brings us three premieres and one returning show. USA’s Colony has its much-anticipated debut this week on Thursday (you can watch the first episode online at this link) and also bowing are Shadowhunters (Freeform, formerly ABC Family), and Second Chance (FOX). And the first CW show returns this week as iZombie resumes its season (the rest of The CW’s shows are back next week). See the full listings at our partner the Sci Fi TV Site.